Applications Index : Ocean
Marine Communications Satellite Tracking Antenna Stabilization
A ship rolling and pitching in the sea proves to be a difficult dynamic
environment. Satellite antennas in such applications require gyro stabilization
in order to accurately receive or transmit data. These antennas can only
accommodate a small amount of pointing error before being rendered unable
to communicate with the satellite.
In the past, many types of gyros have been used for this application,
with varying degrees of success: e.g. dynamically tuned gyros are very
stable, but have reliability problems; fiber optic gyros have been used,
but stability in the environment is an issue.
Watson Industries manufactures a stabilization system that is
reliable and provides accurate performance while operating for extended times in
an extreme environment. Both the ARS-E322/222 and ARS-E322-1A/80 gyros provide
accurate triaxial rate data as an analog voltage and a digital RS-232 signal.
The ARS-E322-1A/80 is made for ordinary operations. The ARS-E322/222 gyro is made
for more challenging environments.
Technical Challenges:
Reliability and accurate rate output over long operating periods
are the primary obstacles to providing gyros for this application.
Watson Industries has built algorithms into our gyro packages
that actively correct for errors. This operation will keep the gyro accuracy
well within requirements for the life of the product.
Watson Experience:
Watson Industries has built gyro packages for antenna stabilization since 1982.
Requirements:
- Low Noise: <0.03°/sec
- Wide Bandwidth: 80Hz
- Rate Range: ±50°/sec
- Shock: 200G
- Vibration: 5G RMS
- Operating Temperature: -28°C to +50°C
Applicable Products:
Typical Options:
We are able to accommodate your custom needs. Go to our
custom product modifications page
for a listing of the most common custom options we support.
